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reveal.js can now be uninitialized by calling Reveal.destroy() #1145 #3134

This commit is contained in:
hakimel 2022-02-21 13:41:36 +01:00
parent ff20051861
commit 1e0cbe6779
11 changed files with 110 additions and 55 deletions
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2
dist/reveal.esm.js vendored
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2
dist/reveal.esm.js.map vendored
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dist/reveal.js vendored
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dist/reveal.js.map vendored
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7
js/controllers/controls.js vendored
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@ -188,6 +188,13 @@ export default class Controls {
} }
} }
destroy() {
this.unbind();
this.element.remove();
}
/** /**
* Event handlers for navigation control buttons. * Event handlers for navigation control buttons.
*/ */

13
js/controllers/plugins.js
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@ -238,4 +238,17 @@ export default class Plugins {
} }
destroy() {
Object.values( this.registeredPlugins ).forEach( plugin => {
if( typeof plugin.destroy === 'function' ) {
plugin.destroy();
}
} );
this.registeredPlugins = {};
this.asyncDependencies = [];
}
} }

11
js/controllers/pointer.js
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@ -75,6 +75,17 @@ export default class Pointer {
} }
destroy() {
this.showCursor();
document.removeEventListener( 'DOMMouseScroll', this.onDocumentMouseScroll, false );
document.removeEventListener( 'mousewheel', this.onDocumentMouseScroll, false );
document.removeEventListener( 'mousemove', this.onDocumentCursorActive, false );
document.removeEventListener( 'mousedown', this.onDocumentCursorActive, false );
}
/** /**
* Called whenever there is mouse input at the document level * Called whenever there is mouse input at the document level
* to determine if the cursor is active or not. * to determine if the cursor is active or not.

91
js/reveal.js
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@ -405,32 +405,7 @@ export default function( revealElement, options ) {
function setupPostMessage() { function setupPostMessage() {
if( config.postMessage ) { if( config.postMessage ) {
window.addEventListener( 'message', event => { window.addEventListener( 'message', onPostMessage, false );
let data = event.data;
// Make sure we're dealing with JSON
if( typeof data === 'string' && data.charAt( 0 ) === '{' && data.charAt( data.length - 1 ) === '}' ) {
data = JSON.parse( data );
// Check if the requested method can be found
if( data.method && typeof Reveal[data.method] === 'function' ) {
if( POST_MESSAGE_METHOD_BLACKLIST.test( data.method ) === false ) {
const result = Reveal[data.method].apply( Reveal, data.args );
// Dispatch a postMessage event with the returned value from
// our method invocation for getter functions
dispatchPostMessage( 'callback', { method: data.method, result: result } );
}
else {
console.warn( 'reveal.js: "'+ data.method +'" is is blacklisted from the postMessage API' );
}
}
}
}, false );
} }
} }
@ -577,6 +552,37 @@ export default function( revealElement, options ) {
} }
/**
* Uninitializes reveal.js by undoing changes made to the
* DOM and removing all event listeners.
*/
function destroy() {
removeEventListeners();
cancelAutoSlide();
disablePreviewLinks();
// Destroy controllers
plugins.destroy();
pointer.destroy();
controls.destroy();
// Remove event listeners
document.removeEventListener( 'fullscreenchange', onFullscreenChange );
document.removeEventListener( 'webkitfullscreenchange', onFullscreenChange );
document.removeEventListener( 'visibilitychange', onPageVisibilityChange, false );
window.removeEventListener( 'message', onPostMessage, false );
window.removeEventListener( 'load', layout, false );
// Undo DOM changes
dom.viewport.classList.remove( 'reveal-viewport' );
document.documentElement.classList.remove( 'reveal-full-page' );
dom.viewport.style.removeProperty( '--slide-width' );
dom.viewport.style.removeProperty( '--slide-height' );
}
/** /**
* Adds a listener to one of our custom reveal.js events, * Adds a listener to one of our custom reveal.js events,
* like slidechanged. * like slidechanged.
@ -2375,6 +2381,38 @@ export default function( revealElement, options ) {
} }
/**
* Listener for post message events posted to this window.
*/
function onPostMessage( event ) {
let data = event.data;
// Make sure we're dealing with JSON
if( typeof data === 'string' && data.charAt( 0 ) === '{' && data.charAt( data.length - 1 ) === '}' ) {
data = JSON.parse( data );
// Check if the requested method can be found
if( data.method && typeof Reveal[data.method] === 'function' ) {
if( POST_MESSAGE_METHOD_BLACKLIST.test( data.method ) === false ) {
const result = Reveal[data.method].apply( Reveal, data.args );
// Dispatch a postMessage event with the returned value from
// our method invocation for getter functions
dispatchPostMessage( 'callback', { method: data.method, result: result } );
}
else {
console.warn( 'reveal.js: "'+ data.method +'" is is blacklisted from the postMessage API' );
}
}
}
}
/** /**
* Event listener for transition end on the current slide. * Event listener for transition end on the current slide.
* *
@ -2521,6 +2559,7 @@ export default function( revealElement, options ) {
initialize, initialize,
configure, configure,
destroy,
sync, sync,
syncSlide, syncSlide,

29
plugin/zoom/plugin.js
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@ -25,6 +25,12 @@ const Plugin = {
} }
} ); } );
},
destroy: () => {
zoom.reset();
} }
}; };
@ -52,19 +58,11 @@ var zoom = (function(){
panUpdateInterval = -1; panUpdateInterval = -1;
// Check for transform support so that we can fallback otherwise // Check for transform support so that we can fallback otherwise
var supportsTransforms = 'WebkitTransform' in document.body.style || var supportsTransforms = 'transform' in document.body.style;
'MozTransform' in document.body.style ||
'msTransform' in document.body.style ||
'OTransform' in document.body.style ||
'transform' in document.body.style;
if( supportsTransforms ) { if( supportsTransforms ) {
// The easing that will be applied when we zoom in/out // The easing that will be applied when we zoom in/out
document.body.style.transition = 'transform 0.8s ease'; document.body.style.transition = 'transform 0.8s ease';
document.body.style.OTransition = '-o-transform 0.8s ease';
document.body.style.msTransition = '-ms-transform 0.8s ease';
document.body.style.MozTransition = '-moz-transform 0.8s ease';
document.body.style.WebkitTransition = '-webkit-transform 0.8s ease';
} }
// Zoom out if the user hits escape // Zoom out if the user hits escape
@ -105,10 +103,6 @@ var zoom = (function(){
// Reset // Reset
if( scale === 1 ) { if( scale === 1 ) {
document.body.style.transform = ''; document.body.style.transform = '';
document.body.style.OTransform = '';
document.body.style.msTransform = '';
document.body.style.MozTransform = '';
document.body.style.WebkitTransform = '';
} }
// Scale // Scale
else { else {
@ -116,16 +110,7 @@ var zoom = (function(){
transform = 'translate('+ -rect.x +'px,'+ -rect.y +'px) scale('+ scale +')'; transform = 'translate('+ -rect.x +'px,'+ -rect.y +'px) scale('+ scale +')';
document.body.style.transformOrigin = origin; document.body.style.transformOrigin = origin;
document.body.style.OTransformOrigin = origin;
document.body.style.msTransformOrigin = origin;
document.body.style.MozTransformOrigin = origin;
document.body.style.WebkitTransformOrigin = origin;
document.body.style.transform = transform; document.body.style.transform = transform;
document.body.style.OTransform = transform;
document.body.style.msTransform = transform;
document.body.style.MozTransform = transform;
document.body.style.WebkitTransform = transform;
} }
} }
else { else {

2
plugin/zoom/zoom.esm.js
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@ -1,4 +1,4 @@
/*! /*!
* reveal.js Zoom plugin * reveal.js Zoom plugin
*/ */
var e={id:"zoom",init:function(e){e.getRevealElement().addEventListener("mousedown",(function(o){var n=/Linux/.test(window.navigator.platform)?"ctrl":"alt",i=(e.getConfig().zoomKey?e.getConfig().zoomKey:n)+"Key",d=e.getConfig().zoomLevel?e.getConfig().zoomLevel:2;o[i]&&!e.isOverview()&&(o.preventDefault(),t.to({x:o.clientX,y:o.clientY,scale:d,pan:!1}))}))}},t=function(){var e=1,o=0,n=0,i=-1,d=-1,s="WebkitTransform"in document.body.style||"MozTransform"in document.body.style||"msTransform"in document.body.style||"OTransform"in document.body.style||"transform"in document.body.style;function r(t,o){var n=y();if(t.width=t.width||1,t.height=t.height||1,t.x-=(window.innerWidth-t.width*o)/2,t.y-=(window.innerHeight-t.height*o)/2,s)if(1===o)document.body.style.transform="",document.body.style.OTransform="",document.body.style.msTransform="",document.body.style.MozTransform="",document.body.style.WebkitTransform="";else{var i=n.x+"px "+n.y+"px",d="translate("+-t.x+"px,"+-t.y+"px) scale("+o+")";document.body.style.transformOrigin=i,document.body.style.OTransformOrigin=i,document.body.style.msTransformOrigin=i,document.body.style.MozTransformOrigin=i,document.body.style.WebkitTransformOrigin=i,document.body.style.transform=d,document.body.style.OTransform=d,document.body.style.msTransform=d,document.body.style.MozTransform=d,document.body.style.WebkitTransform=d}else 1===o?(document.body.style.position="",document.body.style.left="",document.body.style.top="",document.body.style.width="",document.body.style.height="",document.body.style.zoom=""):(document.body.style.position="relative",document.body.style.left=-(n.x+t.x)/o+"px",document.body.style.top=-(n.y+t.y)/o+"px",document.body.style.width=100*o+"%",document.body.style.height=100*o+"%",document.body.style.zoom=o);e=o,document.documentElement.classList&&(1!==e?document.documentElement.classList.add("zoomed"):document.documentElement.classList.remove("zoomed"))}function m(){var t=.12*window.innerWidth,i=.12*window.innerHeight,d=y();n<i?window.scroll(d.x,d.y-14/e*(1-n/i)):n>window.innerHeight-i&&window.scroll(d.x,d.y+(1-(window.innerHeight-n)/i)*(14/e)),o<t?window.scroll(d.x-14/e*(1-o/t),d.y):o>window.innerWidth-t&&window.scroll(d.x+(1-(window.innerWidth-o)/t)*(14/e),d.y)}function y(){return{x:void 0!==window.scrollX?window.scrollX:window.pageXOffset,y:void 0!==window.scrollY?window.scrollY:window.pageYOffset}}return s&&(document.body.style.transition="transform 0.8s ease",document.body.style.OTransition="-o-transform 0.8s ease",document.body.style.msTransition="-ms-transform 0.8s ease",document.body.style.MozTransition="-moz-transform 0.8s ease",document.body.style.WebkitTransition="-webkit-transform 0.8s ease"),document.addEventListener("keyup",(function(o){1!==e&&27===o.keyCode&&t.out()})),document.addEventListener("mousemove",(function(t){1!==e&&(o=t.clientX,n=t.clientY)})),{to:function(o){if(1!==e)t.out();else{if(o.x=o.x||0,o.y=o.y||0,o.element){var n=o.element.getBoundingClientRect();o.x=n.left-20,o.y=n.top-20,o.width=n.width+40,o.height=n.height+40}void 0!==o.width&&void 0!==o.height&&(o.scale=Math.max(Math.min(window.innerWidth/o.width,window.innerHeight/o.height),1)),o.scale>1&&(o.x*=o.scale,o.y*=o.scale,r(o,o.scale),!1!==o.pan&&(i=setTimeout((function(){d=setInterval(m,1e3/60)}),800)))}},out:function(){clearTimeout(i),clearInterval(d),r({x:0,y:0},1),e=1},magnify:function(e){this.to(e)},reset:function(){this.out()},zoomLevel:function(){return e}}}();export default function(){return e} var e={id:"zoom",init:function(e){e.getRevealElement().addEventListener("mousedown",(function(n){var o=/Linux/.test(window.navigator.platform)?"ctrl":"alt",i=(e.getConfig().zoomKey?e.getConfig().zoomKey:o)+"Key",d=e.getConfig().zoomLevel?e.getConfig().zoomLevel:2;n[i]&&!e.isOverview()&&(n.preventDefault(),t.to({x:n.clientX,y:n.clientY,scale:d,pan:!1}))}))},destroy:function(){t.reset()}},t=function(){var e=1,n=0,o=0,i=-1,d=-1,l="transform"in document.body.style;function s(t,n){var o=r();if(t.width=t.width||1,t.height=t.height||1,t.x-=(window.innerWidth-t.width*n)/2,t.y-=(window.innerHeight-t.height*n)/2,l)if(1===n)document.body.style.transform="";else{var i=o.x+"px "+o.y+"px",d="translate("+-t.x+"px,"+-t.y+"px) scale("+n+")";document.body.style.transformOrigin=i,document.body.style.transform=d}else 1===n?(document.body.style.position="",document.body.style.left="",document.body.style.top="",document.body.style.width="",document.body.style.height="",document.body.style.zoom=""):(document.body.style.position="relative",document.body.style.left=-(o.x+t.x)/n+"px",document.body.style.top=-(o.y+t.y)/n+"px",document.body.style.width=100*n+"%",document.body.style.height=100*n+"%",document.body.style.zoom=n);e=n,document.documentElement.classList&&(1!==e?document.documentElement.classList.add("zoomed"):document.documentElement.classList.remove("zoomed"))}function c(){var t=.12*window.innerWidth,i=.12*window.innerHeight,d=r();o<i?window.scroll(d.x,d.y-14/e*(1-o/i)):o>window.innerHeight-i&&window.scroll(d.x,d.y+(1-(window.innerHeight-o)/i)*(14/e)),n<t?window.scroll(d.x-14/e*(1-n/t),d.y):n>window.innerWidth-t&&window.scroll(d.x+(1-(window.innerWidth-n)/t)*(14/e),d.y)}function r(){return{x:void 0!==window.scrollX?window.scrollX:window.pageXOffset,y:void 0!==window.scrollY?window.scrollY:window.pageYOffset}}return l&&(document.body.style.transition="transform 0.8s ease"),document.addEventListener("keyup",(function(n){1!==e&&27===n.keyCode&&t.out()})),document.addEventListener("mousemove",(function(t){1!==e&&(n=t.clientX,o=t.clientY)})),{to:function(n){if(1!==e)t.out();else{if(n.x=n.x||0,n.y=n.y||0,n.element){var o=n.element.getBoundingClientRect();n.x=o.left-20,n.y=o.top-20,n.width=o.width+40,n.height=o.height+40}void 0!==n.width&&void 0!==n.height&&(n.scale=Math.max(Math.min(window.innerWidth/n.width,window.innerHeight/n.height),1)),n.scale>1&&(n.x*=n.scale,n.y*=n.scale,s(n,n.scale),!1!==n.pan&&(i=setTimeout((function(){d=setInterval(c,1e3/60)}),800)))}},out:function(){clearTimeout(i),clearInterval(d),s({x:0,y:0},1),e=1},magnify:function(e){this.to(e)},reset:function(){this.out()},zoomLevel:function(){return e}}}();export default function(){return e}

4
plugin/zoom/zoom.js
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@ -1,4 +1,4 @@
!function(e,o){"object"==typeof exports&&"undefined"!=typeof module?module.exports=o():"function"==typeof define&&define.amd?define(o):(e="undefined"!=typeof globalThis?globalThis:e||self).RevealZoom=o()}(this,(function(){"use strict"; !function(e,t){"object"==typeof exports&&"undefined"!=typeof module?module.exports=t():"function"==typeof define&&define.amd?define(t):(e="undefined"!=typeof globalThis?globalThis:e||self).RevealZoom=t()}(this,(function(){"use strict";
/*! /*!
* reveal.js Zoom plugin * reveal.js Zoom plugin
*/var e={id:"zoom",init:function(e){e.getRevealElement().addEventListener("mousedown",(function(t){var n=/Linux/.test(window.navigator.platform)?"ctrl":"alt",i=(e.getConfig().zoomKey?e.getConfig().zoomKey:n)+"Key",d=e.getConfig().zoomLevel?e.getConfig().zoomLevel:2;t[i]&&!e.isOverview()&&(t.preventDefault(),o.to({x:t.clientX,y:t.clientY,scale:d,pan:!1}))}))}},o=function(){var e=1,t=0,n=0,i=-1,d=-1,s="WebkitTransform"in document.body.style||"MozTransform"in document.body.style||"msTransform"in document.body.style||"OTransform"in document.body.style||"transform"in document.body.style;function r(o,t){var n=l();if(o.width=o.width||1,o.height=o.height||1,o.x-=(window.innerWidth-o.width*t)/2,o.y-=(window.innerHeight-o.height*t)/2,s)if(1===t)document.body.style.transform="",document.body.style.OTransform="",document.body.style.msTransform="",document.body.style.MozTransform="",document.body.style.WebkitTransform="";else{var i=n.x+"px "+n.y+"px",d="translate("+-o.x+"px,"+-o.y+"px) scale("+t+")";document.body.style.transformOrigin=i,document.body.style.OTransformOrigin=i,document.body.style.msTransformOrigin=i,document.body.style.MozTransformOrigin=i,document.body.style.WebkitTransformOrigin=i,document.body.style.transform=d,document.body.style.OTransform=d,document.body.style.msTransform=d,document.body.style.MozTransform=d,document.body.style.WebkitTransform=d}else 1===t?(document.body.style.position="",document.body.style.left="",document.body.style.top="",document.body.style.width="",document.body.style.height="",document.body.style.zoom=""):(document.body.style.position="relative",document.body.style.left=-(n.x+o.x)/t+"px",document.body.style.top=-(n.y+o.y)/t+"px",document.body.style.width=100*t+"%",document.body.style.height=100*t+"%",document.body.style.zoom=t);e=t,document.documentElement.classList&&(1!==e?document.documentElement.classList.add("zoomed"):document.documentElement.classList.remove("zoomed"))}function m(){var o=.12*window.innerWidth,i=.12*window.innerHeight,d=l();n<i?window.scroll(d.x,d.y-14/e*(1-n/i)):n>window.innerHeight-i&&window.scroll(d.x,d.y+(1-(window.innerHeight-n)/i)*(14/e)),t<o?window.scroll(d.x-14/e*(1-t/o),d.y):t>window.innerWidth-o&&window.scroll(d.x+(1-(window.innerWidth-t)/o)*(14/e),d.y)}function l(){return{x:void 0!==window.scrollX?window.scrollX:window.pageXOffset,y:void 0!==window.scrollY?window.scrollY:window.pageYOffset}}return s&&(document.body.style.transition="transform 0.8s ease",document.body.style.OTransition="-o-transform 0.8s ease",document.body.style.msTransition="-ms-transform 0.8s ease",document.body.style.MozTransition="-moz-transform 0.8s ease",document.body.style.WebkitTransition="-webkit-transform 0.8s ease"),document.addEventListener("keyup",(function(t){1!==e&&27===t.keyCode&&o.out()})),document.addEventListener("mousemove",(function(o){1!==e&&(t=o.clientX,n=o.clientY)})),{to:function(t){if(1!==e)o.out();else{if(t.x=t.x||0,t.y=t.y||0,t.element){var n=t.element.getBoundingClientRect();t.x=n.left-20,t.y=n.top-20,t.width=n.width+40,t.height=n.height+40}void 0!==t.width&&void 0!==t.height&&(t.scale=Math.max(Math.min(window.innerWidth/t.width,window.innerHeight/t.height),1)),t.scale>1&&(t.x*=t.scale,t.y*=t.scale,r(t,t.scale),!1!==t.pan&&(i=setTimeout((function(){d=setInterval(m,1e3/60)}),800)))}},out:function(){clearTimeout(i),clearInterval(d),r({x:0,y:0},1),e=1},magnify:function(e){this.to(e)},reset:function(){this.out()},zoomLevel:function(){return e}}}();return function(){return e}})); */var e={id:"zoom",init:function(e){e.getRevealElement().addEventListener("mousedown",(function(o){var n=/Linux/.test(window.navigator.platform)?"ctrl":"alt",i=(e.getConfig().zoomKey?e.getConfig().zoomKey:n)+"Key",d=e.getConfig().zoomLevel?e.getConfig().zoomLevel:2;o[i]&&!e.isOverview()&&(o.preventDefault(),t.to({x:o.clientX,y:o.clientY,scale:d,pan:!1}))}))},destroy:function(){t.reset()}},t=function(){var e=1,o=0,n=0,i=-1,d=-1,l="transform"in document.body.style;function s(t,o){var n=r();if(t.width=t.width||1,t.height=t.height||1,t.x-=(window.innerWidth-t.width*o)/2,t.y-=(window.innerHeight-t.height*o)/2,l)if(1===o)document.body.style.transform="";else{var i=n.x+"px "+n.y+"px",d="translate("+-t.x+"px,"+-t.y+"px) scale("+o+")";document.body.style.transformOrigin=i,document.body.style.transform=d}else 1===o?(document.body.style.position="",document.body.style.left="",document.body.style.top="",document.body.style.width="",document.body.style.height="",document.body.style.zoom=""):(document.body.style.position="relative",document.body.style.left=-(n.x+t.x)/o+"px",document.body.style.top=-(n.y+t.y)/o+"px",document.body.style.width=100*o+"%",document.body.style.height=100*o+"%",document.body.style.zoom=o);e=o,document.documentElement.classList&&(1!==e?document.documentElement.classList.add("zoomed"):document.documentElement.classList.remove("zoomed"))}function c(){var t=.12*window.innerWidth,i=.12*window.innerHeight,d=r();n<i?window.scroll(d.x,d.y-14/e*(1-n/i)):n>window.innerHeight-i&&window.scroll(d.x,d.y+(1-(window.innerHeight-n)/i)*(14/e)),o<t?window.scroll(d.x-14/e*(1-o/t),d.y):o>window.innerWidth-t&&window.scroll(d.x+(1-(window.innerWidth-o)/t)*(14/e),d.y)}function r(){return{x:void 0!==window.scrollX?window.scrollX:window.pageXOffset,y:void 0!==window.scrollY?window.scrollY:window.pageYOffset}}return l&&(document.body.style.transition="transform 0.8s ease"),document.addEventListener("keyup",(function(o){1!==e&&27===o.keyCode&&t.out()})),document.addEventListener("mousemove",(function(t){1!==e&&(o=t.clientX,n=t.clientY)})),{to:function(o){if(1!==e)t.out();else{if(o.x=o.x||0,o.y=o.y||0,o.element){var n=o.element.getBoundingClientRect();o.x=n.left-20,o.y=n.top-20,o.width=n.width+40,o.height=n.height+40}void 0!==o.width&&void 0!==o.height&&(o.scale=Math.max(Math.min(window.innerWidth/o.width,window.innerHeight/o.height),1)),o.scale>1&&(o.x*=o.scale,o.y*=o.scale,s(o,o.scale),!1!==o.pan&&(i=setTimeout((function(){d=setInterval(c,1e3/60)}),800)))}},out:function(){clearTimeout(i),clearInterval(d),s({x:0,y:0},1),e=1},magnify:function(e){this.to(e)},reset:function(){this.out()},zoomLevel:function(){return e}}}();return function(){return e}}));